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Find Addition to existing structure builders in Tumwater

Avatar for GreenSun Construction

GreenSun Construction

3.78(
9
)
Approved Pro

GreenSun Construction

3.78(
9
)
Approved Pro
Customers say: Terrific value
44 years of experience
Free onsite estimate

GreenSun Construction offers experience and expertise in providing a custom solution to your building requirements. For thirty years we have concentrated on giving our clients a rewarding experience in building and remodeling with an emphasis on quality and customer satisfaction.

"They did a good job working through unforseen difficulties. We are very pleased with the final project."

Steve F on January 2025

GreenSun Construction offers experience and expertise in providing a custom solution to your building requirements. For thirty years we have concentrated on giving our clients a rewarding experience in building and remodeling with an emphasis on quality and customer satisfaction.

"They did a good job working through unforseen difficulties. We are very pleased with the final project."

Steve F on January 2025


Avatar for Harmon & Harmon Consulting, Inc.

Harmon & Harmon Consulting, Inc.

4.46(
47
)
Approved Pro

Harmon & Harmon Consulting, Inc.

4.46(
47
)
Approved Pro
Customers say: Super punctual
38 local quotes requested
38 years of experience

With over 30 years of experience in the general contracting Industry, we are the experts you need to take care of your home or business. We handle everything from remodels to deck/porch builds. We will treat your home or business as we would treat our own. Give Harmon & Harmon Consulting a call today, we look forward to working with you!

"Had them rip out the fireplace that was installed poorly in 1990. A bit costly, but I doubt a single handyman could have done it in a timely fashion. Done in 3 days start to finish. I was expecting some water damage, but it was much worse. Getting a exact price for the work out of them beforehand was impossible. Ultimately it cost $2500 extra do to having to replace more sections of the roof and support beans. They didn't pull a fast one, the wood crumbled when touched. Labor isn't cheap. Would hire them again because the work is solid. "

Isaiah R on August 2025

With over 30 years of experience in the general contracting Industry, we are the experts you need to take care of your home or business. We handle everything from remodels to deck/porch builds. We will treat your home or business as we would treat our own. Give Harmon & Harmon Consulting a call today, we look forward to working with you!

"Had them rip out the fireplace that was installed poorly in 1990. A bit costly, but I doubt a single handyman could have done it in a timely fashion. Done in 3 days start to finish. I was expecting some water damage, but it was much worse. Getting a exact price for the work out of them beforehand was impossible. Ultimately it cost $2500 extra do to having to replace more sections of the roof and support beans. They didn't pull a fast one, the wood crumbled when touched. Labor isn't cheap. Would hire them again because the work is solid. "

Isaiah R on August 2025


Avatar for KOI BUILD CO

KOI BUILD CO

4.63(
12
)
Approved Pro

KOI BUILD CO

4.63(
12
)
Approved Pro
Customers say: Quick response
14 local quotes requested
9 years of experience

Koi Build Co., established initially as HK Design & Remodeling, has always started from modest beginnings. Our core belief is that true success comes from engaging passionately in our work, rather than being driven by financial motives. We are committed to excelling in our projects, making a distinct mark through exceptional performance. Our unwavering focus remains on outstanding client service and superior craftsmanship. Despite our growth, we steadfastly adhere to our fundamental mission: "To achieve ongoing success by ensuring client satisfaction, delivering high-quality services, and upholding genuine integrity, all of which culminate in the finest craftsmanship."

"The whole experience was excellent. Chris when to give us a bid. He was very knowledgeable. He told use about the triangle of stove, fridge and sink and flow. He suggested a long narrow window to replace the tile backsplash on an outside wall. It was a great idea. When sit at the new bar between the kitchen and the living room we look out into our backyard. Itâ s beautiful. The guys that did the work are extremely work oriented. They are constantly working. They were thorough, knowledgeable and open to our suggestions and requests. We wanted an additional can light no problem. They were great. They cleaned up every day before they left. They would tell use when they were going to arrive and what they planned to accomplish that day. I have old siding on the outside of my house. They matched it perfectly when eliminated a window. The price of the cabinets was a lot more reasonable the other bids and theyâ re beautiful. What I mentally pictured in my mind on how it would look and the ease of preparing meals in the new kitchen were so wrong. Itâ s at least 10 times better. It still has the same physical dimensions but how itâ s played out. It seems so much bigger. I highly recommend them for any project you need done"

Woody W on September 2024

Koi Build Co., established initially as HK Design & Remodeling, has always started from modest beginnings. Our core belief is that true success comes from engaging passionately in our work, rather than being driven by financial motives. We are committed to excelling in our projects, making a distinct mark through exceptional performance. Our unwavering focus remains on outstanding client service and superior craftsmanship. Despite our growth, we steadfastly adhere to our fundamental mission: "To achieve ongoing success by ensuring client satisfaction, delivering high-quality services, and upholding genuine integrity, all of which culminate in the finest craftsmanship."

"The whole experience was excellent. Chris when to give us a bid. He was very knowledgeable. He told use about the triangle of stove, fridge and sink and flow. He suggested a long narrow window to replace the tile backsplash on an outside wall. It was a great idea. When sit at the new bar between the kitchen and the living room we look out into our backyard. Itâ s beautiful. The guys that did the work are extremely work oriented. They are constantly working. They were thorough, knowledgeable and open to our suggestions and requests. We wanted an additional can light no problem. They were great. They cleaned up every day before they left. They would tell use when they were going to arrive and what they planned to accomplish that day. I have old siding on the outside of my house. They matched it perfectly when eliminated a window. The price of the cabinets was a lot more reasonable the other bids and theyâ re beautiful. What I mentally pictured in my mind on how it would look and the ease of preparing meals in the new kitchen were so wrong. Itâ s at least 10 times better. It still has the same physical dimensions but how itâ s played out. It seems so much bigger. I highly recommend them for any project you need done"

Woody W on September 2024


Avatar for Lakeview Contractors, Inc

Lakeview Contractors, Inc

5.00(
11
)
Approved Pro

Lakeview Contractors, Inc

5.00(
11
)
Approved Pro
Super Service Award
28 years of experience
Free onsite estimate

Established in 1998, owner Ted Hultman continues his vision with his sons; Ryder and Tanner Hultman. Together this second generation of contractors has worked hard to establish long-lasting, professional relationships with local vendors and sub contractors to ensure swift and thorough contracting services in Olympia, Lacey, Tumwater and surrounding cities of Thurston County, WA. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call us today.

"Did a fantastic job building us a new fence!"

Inah _ on May 2025

Established in 1998, owner Ted Hultman continues his vision with his sons; Ryder and Tanner Hultman. Together this second generation of contractors has worked hard to establish long-lasting, professional relationships with local vendors and sub contractors to ensure swift and thorough contracting services in Olympia, Lacey, Tumwater and surrounding cities of Thurston County, WA. We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction from start to completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job. Call us today.

"Did a fantastic job building us a new fence!"

Inah _ on May 2025


Avatar for Zane Builders LLC

Zane Builders LLC

4.83(
6
)
Approved Pro

Zane Builders LLC

4.83(
6
)
Approved Pro
2 years of experience
Free onsite estimate

Zane Builders is a trusted General Contractor in Olympia WA and in The South Puget Sound Area. We are Licensed, Bonded and Insured and Serving Olympia, Lacey, Rochester, Centralia, Chehalis, Tumwater, McCleary, Shelton, Maytown, and Grand Mound, etc. — Zane Builders delivers craftsmanship you can trust.

"Window upgrade on rental."

Dan P on January 2026

Zane Builders is a trusted General Contractor in Olympia WA and in The South Puget Sound Area. We are Licensed, Bonded and Insured and Serving Olympia, Lacey, Rochester, Centralia, Chehalis, Tumwater, McCleary, Shelton, Maytown, and Grand Mound, etc. — Zane Builders delivers craftsmanship you can trust.

"Window upgrade on rental."

Dan P on January 2026


"Patrick came back to repair the cracks in our patio slab. He did amazing work and it should last for a long time. He does what he says and stands behind his work. 100% satisfaction here."

Meg G on May 2025

Licensed, bonded, and insured general contractor serving Thurston County and surrounding areas. Contact for a free quote and we also offer financing. Quality construction at affordable prices with 30+ years of experience.

"Patrick came back to repair the cracks in our patio slab. He did amazing work and it should last for a long time. He does what he says and stands behind his work. 100% satisfaction here."

Meg G on May 2025


Avatar for EI. Kristyn & Son Construction, Inc.

EI. Kristyn & Son Construction, Inc.

4.39(
12
)
Approved Pro

EI. Kristyn & Son Construction, Inc.

4.39(
12
)
Approved Pro
Customers say: Terrific value
24 years of experience
Free onsite estimate

We are a family owned & operated business with more than 40 years of experience, with a friendly live voice for your personal service every time, we always provide you with the quality you deserve! Call us today and let us help you make your dream a reality!

"He did a beautiful job of terracing our very difficult slope including the removal of a stump the size of the excavator. He also made a Very useable path down to our lower lot on a steep drop. Very pleasant experience. Weâ d use him again in a heart beat! Also very reasonably priced."

Sally B on September 2020

We are a family owned & operated business with more than 40 years of experience, with a friendly live voice for your personal service every time, we always provide you with the quality you deserve! Call us today and let us help you make your dream a reality!

"He did a beautiful job of terracing our very difficult slope including the removal of a stump the size of the excavator. He also made a Very useable path down to our lower lot on a steep drop. Very pleasant experience. Weâ d use him again in a heart beat! Also very reasonably priced."

Sally B on September 2020


"Allan was wonderful to work with. He was fantastic about communicating with us and did a stellar job of replacing my dining room floor and patching my walls after we had a pipe burst. We'd absolutely hire him again!"

Sora B on June 2022

Remodeling kitchen and bathroom , building deck and fence. Exterior painting in the summer , interior painting in winter, . Quality is my goal. 100% reponsabilyty is my nick name .

"Allan was wonderful to work with. He was fantastic about communicating with us and did a stellar job of replacing my dining room floor and patching my walls after we had a pipe burst. We'd absolutely hire him again!"

Sora B on June 2022


Avatar for Nate's Carpentry & Construction

Nate's Carpentry & Construction

5.00(
2
)
Approved Pro

Nate's Carpentry & Construction

5.00(
2
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2 years of experience

NCC is a home remodeling pro committed to turning any of your home renovation visions into reality Nate's Carpentry and Construction has over 10 years experience in turning visions into a reality. From interior to exterior, we take pride in our attention to detail during all home renovations. We offer a wide range of remodeling services including kitchen, bath, general renovations, and additions. We also provide services for siding, decks, sheds, Accessory dwelling units, and fences. Remodeling can be a stressful time for home owners so we strive to reduce that stress by keeping good communication, offering options if any questions arise, as well as keeping the mess as small as possible. We hold our quality of work, integrity, and honesty in high regard. As such, we treat every project, big or small, as if it were our own home. Call or 'click' for a FREE estimate today!

"I wanted a sturdy shed built on my poured concrete slab. I knew how large I wanted it, but after that, I needed help. Nate worked with me to design, build and finish my 12x16 shed from start to finish. The process was efficient, and the shed is beautiful. Honestly, what I call a shed, would probably classify as a garage, had we installed a garage door, but that was not what I needed at the time. While working with Nate, I quickly recognized he could be trusted to find a solution to any problem. Next he helped me plan and built a matching railing for my home’s staircase, after I had previously removed an old rotting one. Again, this process was quick easy and friendly. Sadly I moved away from the area, but if I ever return, I will always reach out to Nate first for my building and remodeling needs."

Nathan J on December 2024

NCC is a home remodeling pro committed to turning any of your home renovation visions into reality Nate's Carpentry and Construction has over 10 years experience in turning visions into a reality. From interior to exterior, we take pride in our attention to detail during all home renovations. We offer a wide range of remodeling services including kitchen, bath, general renovations, and additions. We also provide services for siding, decks, sheds, Accessory dwelling units, and fences. Remodeling can be a stressful time for home owners so we strive to reduce that stress by keeping good communication, offering options if any questions arise, as well as keeping the mess as small as possible. We hold our quality of work, integrity, and honesty in high regard. As such, we treat every project, big or small, as if it were our own home. Call or 'click' for a FREE estimate today!

"I wanted a sturdy shed built on my poured concrete slab. I knew how large I wanted it, but after that, I needed help. Nate worked with me to design, build and finish my 12x16 shed from start to finish. The process was efficient, and the shed is beautiful. Honestly, what I call a shed, would probably classify as a garage, had we installed a garage door, but that was not what I needed at the time. While working with Nate, I quickly recognized he could be trusted to find a solution to any problem. Next he helped me plan and built a matching railing for my home’s staircase, after I had previously removed an old rotting one. Again, this process was quick easy and friendly. Sadly I moved away from the area, but if I ever return, I will always reach out to Nate first for my building and remodeling needs."

Nathan J on December 2024


Avatar for Polam Home Improvement Services

Polam Home Improvement Services

5.00(
1
)
Approved Pro

Polam Home Improvement Services

5.00(
1
)
Approved Pro
8 years of experience
Free onsite estimate

I am known for my expertise and quality work that I do. I'm dependable, honest and provide good detailed work. Main types of projects that I work on are: stucco, any type of stucco -repair, leaking problems, decks, remodel kitchens and bathrooms , any remodel, build garages, additions, change windows, doors etc.

"Polam Home Improvement recently completed a project to repair extensive water damage on my home. The work included some major structural repair/replacement of studs, floor joists, insulation, drywall and plaster of the interior walls as well as the exterior Dryvit system surfaces. The texture and color of the finish match the original product perfectly. Tomasz and his crew are very professional, knowledgeable, and courteous. Tomasz gave me a very reasonable estimate, was punctual for appointments and always communicated consistently throughout the project. I highly recommend Polam Home Improvement for their customer service, dependability, and exceptional quality of their work."

Zua S on February 2026

I am known for my expertise and quality work that I do. I'm dependable, honest and provide good detailed work. Main types of projects that I work on are: stucco, any type of stucco -repair, leaking problems, decks, remodel kitchens and bathrooms , any remodel, build garages, additions, change windows, doors etc.

"Polam Home Improvement recently completed a project to repair extensive water damage on my home. The work included some major structural repair/replacement of studs, floor joists, insulation, drywall and plaster of the interior walls as well as the exterior Dryvit system surfaces. The texture and color of the finish match the original product perfectly. Tomasz and his crew are very professional, knowledgeable, and courteous. Tomasz gave me a very reasonable estimate, was punctual for appointments and always communicated consistently throughout the project. I highly recommend Polam Home Improvement for their customer service, dependability, and exceptional quality of their work."

Zua S on February 2026

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FAQs for addition to existing structure building service projects in Tumwater, WA

You can typically raise your roof by four to eight feet, depending on your home's structure and roof design. The exact amount depends on factors like roof slope and framing support. Raising the roof creates additional interior space, enhances natural light, and increases your home's value. Consult a professional to determine the feasible height increase for your home.

Yes, you need a building permit to raise your roof. Obtaining a building permit ensures your project complies with local building codes and safety regulations. A professional contractor can assist with the permit and inspection process and ensure all legal and safety requirements are met. Your contractor will be familiar with building codes in your area, which can differ between cities or states.

While it's possible to raise a flat roof, it requires extensive structural modifications. Flat roofs lack the attic space and support structures of pitched roofs, so raising them involves significant engineering to ensure safety and durability. This process can be complex and costly, so professional assessment is essential before undertaking a project of this magnitude.

The Tumwater, WA homeowners’ guide to addition to existing structure building services

From average costs to expert advice, get all the answers you need to get your job done.